Pengeringan etanol menggunakan zat larut ternari dan penyulingan kelompok hasil ekstrak

Translated title of the contribution: Dehydrating ethanol using a ternary solute and extractive batch distillation

Tjukup Marnoto, I. Gusti Suinarcana Budiaman, Chintya Rizki Hapsari, Risqi Angga Y. Prakosa, Arifin Khuzaimah

Research output: Contribution to journalArticle

Abstract

Anhydrous bioethanol is a material used in many applications including biofuel. Commonly, bioethanol is produced through sugar fermentation which results in a low concentration of ethanol. For utilization as biofuel, the lowest ethanol concentration should be 99.5%. Distillation is common technique to dry a mixture solution, however, the mixture of bioethanol and water is forming an azeotrope that limit the concentration of 96% ethanol. This paper discusses ethanol dehydration through extractive batch distillation by the addition of a ternary solute sodium hydroxide, citric acid, sulfuric acid, glycerol or ethylene glycol to ethanol. The initial concentration of ethanol used was 86% v/v, and the amount of ternary solute added was selected based on the colligative properties of the solution, which included a boiling point elevation (ΔT B ) that ranged from 5 to 25 °C. All the ternary solutes could break or shift the ethanol-water azeotrope. The highest concentration of ethanol was 99.91% v/v at ΔT B = 25 °C with sulfuric acid as the ternary component. The resulted ethanol concentration exhibited a linear relationship with ΔT B , which was also affected by the boiling point of the ternary solute. This study successfully produced anhydrous bioethanol by low cost and simple distillation process.

Original languageMalay
Pages (from-to)124-130
Number of pages7
JournalMalaysian Journal of Analytical Sciences
Volume23
Issue number1
DOIs
Publication statusPublished - 1 Feb 2019

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Distillation
Ethanol
Bioethanol
Azeotropes
Biofuels
Boiling point
Sodium Hydroxide
Ethylene Glycol
Water
Dehydration
Citric Acid
Sugars
Glycerol
Fermentation
Costs

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Pengeringan etanol menggunakan zat larut ternari dan penyulingan kelompok hasil ekstrak. / Marnoto, Tjukup; Budiaman, I. Gusti Suinarcana; Hapsari, Chintya Rizki; Prakosa, Risqi Angga Y.; Khuzaimah, Arifin.

In: Malaysian Journal of Analytical Sciences, Vol. 23, No. 1, 01.02.2019, p. 124-130.

Research output: Contribution to journalArticle

Marnoto, Tjukup ; Budiaman, I. Gusti Suinarcana ; Hapsari, Chintya Rizki ; Prakosa, Risqi Angga Y. ; Khuzaimah, Arifin. / Pengeringan etanol menggunakan zat larut ternari dan penyulingan kelompok hasil ekstrak. In: Malaysian Journal of Analytical Sciences. 2019 ; Vol. 23, No. 1. pp. 124-130.
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